A saliva plastic piece for drug detection

By integrating saliva sample collection and fingerprint acquisition into a plastic component design, the problems of insufficient sample volume and interference from microplastic particles were solved, enabling rapid and accurate drug detection and ensuring the security of sample verification and the reliability of test results.

CN120539399BActive Publication Date: 2025-12-23SHANGHAI CHEMTRON BIOTECH
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Patent Information

Application Number
CN202510738815.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2025-12-23
Estimated Expiration
2045-06-04

AI Technical Summary

Technical Problem

Existing drug testing devices using plastic saliva samples result in low sample volumes when user cooperation is insufficient, affecting detection sensitivity. Furthermore, the plastic material may release microplastic particles that interfere with detection accuracy, and the traditional design, which does not incorporate biometrics, poses a risk of sample swapping.

Method used

A saliva-containing plastic component was designed, comprising a housing 1, a housing 2, a sampling mechanism, a protection mechanism, and a collection mechanism. By integrating saliva sample collection with fingerprint collection, and utilizing an aluminum alloy funnel and a protective plate structure, sufficient sample volume and fingerprint protection are ensured, and the results are determined using a competitive inhibition method.

Benefits of technology

It enables rapid and accurate drug testing, ensures the accuracy of saliva sample and fingerprint sample verification, reduces interference from microplastic particles, minimizes the risk of sample swapping, and improves testing efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120539399B_ABST
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Abstract

The application discloses a saliva plastic part for drug detection and belongs to the field of drug detection, which comprises a shell one, a shell two, a storage cavity and a pressing through hole, the bottom of the shell one is provided with the shell two, the top of the shell one is connected with an acrylic plate in a penetrating mode, the top of the shell one is provided with a sampling mechanism, the sampling mechanism collects the saliva of a sampler and introduces the saliva sample into a detection reagent strip, and the result is judged through the principle of competitive inhibition method; a plurality of groups of suction cups are distributed in a rectangular mode on the back of the shell two, the inside of the shell two is provided with a protection mechanism, the protection mechanism protects the collected fingerprint sample, thereby avoiding the damage of the collected fingerprint by others and affecting the checking accuracy of the sample and the sampler in the later period, and the saliva sample collection and the fingerprint collection structure are integrated in the drug detection, and the sealing protection is realized to prevent the sample from being polluted or replaced.
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Description

TECHNICAL FIELD

[0001] The application belongs to the field of drug detection, and particularly relates to a saliva plastic piece for drug detection. BACKGROUND

[0002] The saliva plastic piece used in drug detection is one of the core components of a saliva detection device, and is mainly used for rapidly and conveniently collecting a saliva sample and completing a detection process; a reagent strip usually contains multiple detection lines corresponding to different drug types (such as methamphetamine, morphine and ketamine), and the result is determined by the principle of competitive inhibition.

[0003] However, the existing sponge head design is prone to causing a sample volume to be too low (3 minutes of continuous pressing is required) due to insufficient user cooperation, affecting detection sensitivity, the plastic piece material (such as polystyrene) may release microplastic particles in friction, interfering with the detection accuracy of biological markers in saliva, and the traditional design is not bound to a biological feature, and there is a risk of sample switching. SUMMARY

[0004] The purpose of the present application is to provide a saliva plastic piece for drug detection.

[0005] A saliva plastic piece for drug detection, comprising a shell one, a shell two, a receiving cavity and a pressing through hole, the shell two is arranged below the shell one, the acrylic plate is connected above the shell one, the sampling mechanism is arranged above the shell one, the sampling mechanism collects the saliva of the sampler and introduces the saliva sample into the detection reagent strip, and the result is determined by the principle of competitive inhibition;

[0006] A plurality of suction cups are arranged in a rectangular distribution on the back of the shell two, the protection mechanism is arranged in the shell two, the protection mechanism protects the collected fingerprint sample, thereby avoiding damage to the collected fingerprint by others and affecting the accuracy of the later sample and the sampler;

[0007] The collection mechanism is arranged in the shell two, the collection mechanism collects the fingerprint of the detector, thereby ensuring that the saliva sample and the fingerprint sample are checked to the person, and avoiding errors in the checking process, the assembly mechanism is arranged in the shell one, the assembly mechanism solidly connects the connection between the shell one and the shell two, and the fingerprint sample of the collection mechanism is prevented from being damaged, the receiving cavity is arranged in the shell two, and the pressing through hole is arranged in the back of the shell two.

[0008] Preferably, the sampling mechanism comprises a square funnel, a clamping groove, a liquid suction groove, a sponge pad, test paper and a storage groove, the liquid suction groove is arranged on the surface of the shell one, a square funnel is arranged above the liquid suction groove, the bottom end of the square funnel is provided with storage grooves at equal intervals, three groups of test paper are connected to the outside of the storage groove, the test paper is arranged in the shell one, the clamping groove is arranged on the outside of the shell one, the sponge pad is arranged in the liquid suction groove, and the sponge pad is arranged above the three groups of test paper.

[0009] Preferably, the shell one is connected with the bottom end of the square funnel through the storage groove arranged on the outside.

[0010] Preferably, the protection mechanism comprises a protection plate one, a protection plate two, a reset spring one, a guide rod, a protection plate three, a reset spring two and a guide groove, the outside of the protection plate one in the shape of an inverted “[” is connected with the guide rod, the other side of the guide rod is connected with the protection plate two in the shape of an inverted “[”, the guide rod is symmetrically arranged in the storage cavity, the back of the protection plate two is connected with one end of the reset spring one, the other end of the reset spring one is connected with the inner end of the shell two, the guide groove is arranged on one side of the protection plate two, and a plurality of one ends of the reset spring two is arranged in the protection plate two at equal intervals.

[0011] Preferably, the guide groove is connected with one side of the protection plate three through the reset spring two arranged at equal intervals in the inside, and the protection plate three is arranged in parallel with the groove of the protection plate two.

[0012] Preferably, the shell one is connected with the outside of the groove through the rectangular clamping strip arranged at the bottom end.

[0013] Preferably, the collection mechanism comprises a collection substrate, a vertical supporting rod, a plastic tooth, a fingerprint film silica gel and a square tube, the bottom end of the collection substrate is connected with the top end of the vertical supporting rod, the bottom end of the vertical supporting rod is connected with the inside of the square tube, the bottom end of the square tube is connected with the inside of the shell one, the outside of the vertical supporting rod is connected with the plastic tooth, the fingerprint film silica gel is arranged above the collection substrate, and the fingerprint film silica gel is arranged in parallel with the pressing through hole.

[0014] Preferably, the assembly mechanism comprises a horizontal connecting rod, a groove, a rectangular clamping strip, double-sided adhesive tape and a glue applying groove, the horizontal connecting rod is arranged on the outside of the shell two, the surface of the horizontal connecting rod is provided with the groove, one side of the double-sided adhesive tape is attached to the outside of the groove, the other side of the double-sided adhesive tape is connected with the rectangular clamping strip, the bottom end of the rectangular clamping strip is provided with the glue applying groove, and the top end of the rectangular clamping strip is connected with the back of the shell one.

[0015] Preferably, the vertical supporting rod is attached and connected with the top end of the square tube through the plastic tooth arranged on one side.

[0016] The advantages of the present application are that:

[0017] 1. The application integrates saliva sample collection and fingerprint collection structure in drug detection, and realizes sealed protection to prevent sample pollution or replacement, when the collector increases the pressure on the surface of the fingerprint film silica gel by fingers, the plastic teeth arranged outside the vertical supporting rod are directly broken, the plastic teeth between the vertical supporting rod and the square tube lose support, the fingerprint film silica gel surface is protected by the protection plate one and the protection plate two, the structure is disposable, the cost is low, but the protection of the fingerprint can be effectively realized, and the accuracy of drug detection is ensured.

[0018] 2. The square funnel is connected with the clamping groove on the surface of the shell one, so that the square funnel and the shell one are quickly disassembled, the square funnel can be used repeatedly, the aluminum alloy square funnel avoids the problem of releasing micro-plastic particles due to friction of traditional plastic funnels (polystyrene, etc.), reduces the interference on saliva DNA or drug metabolites, the quick disassembly structure cooperates with the optimized funnel inclination angle design, the sample collection time can be shortened to 2 minutes to reach the 2mL scale line, the risk of insufficient sampling caused by user fatigue is reduced, and at least 9 drug items can be detected at one time.

[0019] 3. The protection plate one and the protection plate two are symmetrically arranged on both sides, the collection substrate is protected by the protection plate one and the protection plate two, the protection plate three on the outside pops out from the inside of the protection plate two, so that the stability of the fingerprint collection part protection is improved, the inside of the protection plate is pre-coated with an antibacterial coating (silver ion concentration 50ppm) to inhibit the growth of microorganisms, and the shell one and the shell two are fixedly connected into an integrated structure by the rectangular clamping strip and the horizontal connecting rod, so that the fingerprint can only be taken out by damaging means, and the safety of the saliva sample and the fingerprint sample is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the application.

[0021] Figure 2 It is a whole side view structure schematic diagram of the application.

[0022] Figure 3 It is a whole bottom view structure view of the application.

[0023] Figure 4 It is a surface structure schematic diagram of the shell one in the application.

[0024] Figure 5 It is a top view schematic diagram of the shell two in the application.

[0025] Figure 6 It is a side view structure diagram of the shell two in the application.

[0026] Figure 7 Figure 6 is a schematic view of the protective plate two in the application.

[0027] Figure 8 Figure 5 is a schematic view of the collecting mechanism in the application.

[0028] Figure 9 Figure 4 is a schematic view of the square funnel in the application.

[0029] Figure 10 Figure 3 is a schematic view of the back of the shell one in the application.

[0030] Wherein:

[0031] 1. The shell one;

[0032] 2. The sampling mechanism; 21. The square funnel; 22. The clamping groove; 23. The liquid suction groove; 24. The sponge pad; 25. The test paper; 26. The storage groove;

[0033] 3. The shell two; 4. The acrylic plate; 5. The suction disc;

[0034] 6. The protection mechanism; 61. The protective plate one; 62. The protective plate two; 63. The reset spring one; 64. The guide rod; 65. The protective plate three; 66. The reset spring two; 67. The guide groove;

[0035] 7. The collecting mechanism; 71. The collecting base plate; 72. The vertical supporting rod; 73. The plastic tooth; 74. The fingerprint film silica gel; 75. The square tube;

[0036] 8. The assembling mechanism; 81. The horizontal connecting rod; 82. The groove; 83. The rectangular clamping strip; 84. The double-sided adhesive tape; 85. The glue coating groove;

[0037] 9. The storage cavity; 10. The pressing through hole. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application is further described below in combination with specific embodiments.

[0039] As Figures 1 to 10As shown, a saliva plastic part for drug detection includes a shell one 1, a shell two 3, a receiving cavity 9 and a pressing through hole 10, the shell one 1 is provided with the shell two 3 below, the shell one 1 is connected with the acrylic plate 4 above, the shell one 1 is provided with the sampling mechanism 2 above, the sampling mechanism 2 collects the saliva of the sampler and introduces the saliva sample into the test reagent strip, and the result is judged by the principle of competitive inhibition method; a plurality of groups of suction cups 5 are distributed in the back of the shell two 3, the shell two 3 is provided with a protection mechanism 6 inside, the protection mechanism 6 protects the collected fingerprint sample, thereby avoiding damage to the collected fingerprint by others, affecting the accuracy of the later sample and the sampler; the shell two 3 is provided with a collection mechanism 7 inside, the collection mechanism 7 collects the fingerprint of the tester, thereby ensuring that the saliva sample and the fingerprint sample are checked to the person, avoiding errors in the checking process, the shell one 1 is provided with an assembly mechanism 8 inside, the assembly mechanism 8 solidifies the connection of the connection between the shell one 1 and the shell two 3, avoiding damage to the fingerprint sample of the collection mechanism 7, the shell two 3 is provided with a receiving cavity 9 inside, and the shell two 3 is provided with a pressing through hole 10 on the back.

[0040] The sampling mechanism 2 includes a square funnel 21, a clamping groove 22, a liquid suction groove 23, a sponge pad 24, test paper 25 and a receiving groove 26, the liquid suction groove 23 is provided on the surface of the shell one 1, the square funnel 21 is provided above the liquid suction groove 23, the receiving groove 26 is provided at the bottom end of the square funnel 21 at equal intervals, the receiving groove 26 is connected with three groups of test paper 25 outside, the test paper 25 is arranged in the shell one 1, the clamping groove 22 is provided on the outside of the shell one 1, the sponge pad 24 is arranged above the three groups of test paper 25 in the liquid suction groove 23; the shell one 1 is connected with the bottom end of the square funnel 21 through the receiving groove 26 provided outside, the saliva is collected and treated through the square funnel 21, the bottom end of the square funnel 21 is positioned through the clamping groove 22, thereby facilitating the collection of a certain amount of saliva, and facilitating the simultaneous detection of up to 9 drug items in one sampling.

[0041] The protection mechanism 6 comprises a protection plate one 61, a protection plate two 62, a reset spring one 63, a guide rod 64, a protection plate three 65, a reset spring two 66, and a guide groove 67. The outer side of the inverted "[ ]" shaped protection plate one 61 is connected with the guide rod 64. The other side of the guide rod 64 is connected with the inverted "[ ]" shaped protection plate two 62. The guide rod 64 is symmetrically arranged inside the accommodation cavity 9. The back of the protection plate two 62 is connected with one end of the reset spring one 63. The other end of the reset spring one 63 is connected with the inner end of the shell two 3. The guide groove 67 is arranged on one side of the protection plate two 62. The inside of the protection plate two 62 is arranged with a plurality of groups of one end of the reset spring two 66 at equal intervals. The guide groove 67 is connected with one side of the protection plate three 65 through the reset spring two 66 arranged at equal intervals inside. The protection plate three 65 is arranged in parallel with the recess of the protection plate two 62.

[0042] The shell one 1 is connected with the outer side of the groove 82 through the rectangular clamping strip 83 arranged at the bottom end. The rectangular clamping strip 83 is attached and connected with the groove 82, so as to avoid loosening and separation of the connection between the shell one 1 and the shell two 3. The integrated shell one 1 and shell two 3 protect the fingerprint collection sample.

[0043] The collection mechanism 7 comprises a collection base plate 71, a vertical supporting rod 72, a plastic tooth 73, a fingerprint film silica gel 74, and a square tube 75. The bottom end of the collection base plate 71 is connected with the top end of the vertical supporting rod 72. The bottom end of the vertical supporting rod 72 is connected with the inside of the square tube 75. The bottom end of the square tube 75 is connected with the inside of the shell one 1. The outer side of the vertical supporting rod 72 is connected with the plastic tooth 73. The fingerprint film silica gel 74 is arranged above the collection base plate 71 in parallel with the pressing through hole 10. The vertical supporting rod 72 is attached and connected with the top end of the square tube 75 through the plastic tooth 73 arranged on one side. The vertical supporting rod 72 is supported by the plastic tooth 73 which can be broken. The vertical supporting rod 72 is accommodated by the square tube 75.

[0044] The assembly mechanism 8 comprises a horizontal connecting rod 81, a groove 82, a rectangular clamping strip 83, double-sided adhesive tape 84, and a glue applying groove 85. The horizontal connecting rod 81 is arranged on the outer side of the shell two 3. The surface of the horizontal connecting rod 81 is provided with the groove 82. The outer side of the groove 82 is attached with one side of the double-sided adhesive tape 84. The other side of the double-sided adhesive tape 84 is connected with the rectangular clamping strip 83. The bottom end of the rectangular clamping strip 83 is provided with the glue applying groove 85. The top end of the rectangular clamping strip 83 is connected with the back of the shell one 1.

[0045] In the working process of the present application, the fingerprint collection step is as follows: a collector firstly inserts the thumb or middle finger into the pressing through hole 10, and presses the fingerprint of the thumb or middle finger against the top fingerprint film silica gel 74 of the collection substrate 71, so that the top fingerprint film silica gel 74 of the collection substrate 71 collects the fingerprint on the thumb or middle finger, and the pressing pressure of the collection substrate 71 on the finger is transmitted, so that the plastic teeth 73 arranged outside the vertical supporting rod 72 are directly broken, the plastic teeth 73 between the vertical supporting rod 72 and the square tube 75 lose support, the vertical supporting rod 72 and the collection substrate 71 vertically move downwards, and the vertical supporting rod 72 is accommodated into the square tube 75

[0046] The fingerprint protection step is as follows: when the collection substrate 71 is pressed into the accommodation cavity 9, and the height of the collection substrate 71 is lower than the height of the two side protection plates one 61 and two 62, at this time, the reset spring one 63 arranged on one side of the protection plate one 61 pushes one side of the protection plate one 61, and the inner protection plate three 65 of the protection plate two 62 loses the pressing of the collection substrate 71, so that the reset spring two 66 in the protection plate two 62 moves the protection plate three 65 in the guide groove 67, so that the protection plate three 65 is symmetrical with the recess of the protection plate one 61, and the top of the top fingerprint film silica gel 74 of the collection substrate 71 is protected by the protection plate three 65, the protection plate one 61 and the protection plate two 62;

[0047] The saliva collection and verification step is as follows: the sponge pad 24 is placed into the liquid suction groove 23, the square funnel 21 is used to collect saliva, the bottom of the square funnel 21 is connected with the clamping groove 22, and a plurality of accommodation grooves 26 are formed in the bottom of the square funnel 21 to limit the outer side of the test paper 25, the tongue tip is pressed against the upper jaw to assist saliva secretion, the saliva is spit into the specified scale line through the square funnel 21, and the saliva is released to the reaction area of the test paper 25 through mechanical extrusion or capillary action, and the process needs to ensure that the saliva is in full contact with the colloidal gold marker on the test paper 25, and the process of transferring the saliva to the test paper 25 can be completed within 3-5 minutes, and the chromatographic reaction of the test paper 25 is combined to realize on-site rapid judgment

[0048] The verification and removal step is as follows: in production, the rectangular clamping strip 83 arranged on the back of the shell one 1 is aligned with the groove 82, glue is applied to the inside of the glue applying groove 85, and the double-sided adhesive tape 84 is bonded on the left and right sides of the rectangular clamping strip 83, so that the rectangular clamping strip 83 is inserted into the groove 82, the horizontal connecting rod 81 is bonded and solidified with the rectangular clamping strip 83, and the shell one 1 and the shell two 3 are integrated, when the fingerprint film silica gel 74 needs to be taken out, the whole shell one 1 and the shell two 3 are first photographed by the camera, the integrity of the whole is ensured, then the fingerprint film silica gel 74 is taken out after being damaged, the fingerprint film silica gel 74 is verified to be the owner, and the result of the test paper 25 is photographed.

[0049] From the technical common knowledge, the present application can be realized by other embodiments without departing from the spirit or essential characteristics thereof. Therefore, the above disclosed embodiments are merely exemplary in all aspects and are not the only ones. All changes within the scope of the present application or equivalent to the scope of the present application are intended to be embraced by the present application.

Claims

1. A saliva plastic for drug testing, characterized by: Including shell one (1), shell two (3), storage cavity (9) and press through -hole (10), the positive of shell one (1) is provided with shell two (3), the positive of shell one (1) is connected with acrylic plate (4) through, the positive of shell one (1) is provided with sampling mechanism (2), the sampling mechanism (2) collects the saliva of sampler, and the saliva sample is introduced into detection reagent strip, and the result is judged through the principle of competition inhibition method; The back of shell two (3) is distributed with a plurality of groups of suction cups (5), the inside of shell two (3) is provided with protection mechanism (6), the protection mechanism (6) protects the collected fingerprint sample, so as to avoid the damage of the collected fingerprint by others; The inside of shell two (3) is provided with collection mechanism (7), the collection mechanism (7) collects the fingerprint of the tester, so as to ensure that the saliva sample and the fingerprint sample are checked to the person, the inside of shell one (1) is provided with assembly mechanism (8), the assembly mechanism (8) solidifies the connection of the connection between shell one (1) and shell two (3), avoids the damage of the fingerprint sample of collection mechanism (7), the inside of shell two (3) is provided with storage cavity (9), the back of shell two (3) is provided with press through -hole (10), the protection mechanism (6) includes protection plate one (61), protection plate two (62), reset spring one (63), guide rod (64), protection plate three (65), reset spring two (66) and guide groove (67), the outside of the protection plate one (61) is connected with guide rod (64) through, the other side of the guide rod (64) is connected with the protection plate two (62) of the inverted "[” type, the guide rod (64) is symmetrically arranged in the inside of storage cavity (9), the back of the protection plate two (62) is connected with one end of reset spring one (63), the other end of reset spring one (63) is connected with the inner end of shell two (3), the guide groove (67) is arranged on one side of the protection plate two (62), a plurality of groups of one end of reset spring two (66) are arranged at equal intervals in the inside of the protection plate two (62), the guide groove (67) is connected with one side of protection plate three (65) through the reset spring two (66) arranged at equal intervals in the inside, the protection plate three (65) and the recess of the protection plate two (62) are arranged in parallel, the assembly mechanism (8) includes horizontal connecting rod (81), recess (82), rectangular clamping strip (83), double -sided adhesive tape (84) and rubberizing groove (85), the horizontal connecting rod (81) is arranged on the outside of shell two (3), the surface of the horizontal connecting rod (81) is provided with recess (82), one side of double -sided adhesive tape (84) is attached to the outside of recess (82), the other side of double -sided adhesive tape (84) is connected with rectangular clamping strip (83), the bottom end of rectangular clamping strip (83) is provided with rubberizing groove (85), the top end of rectangular clamping strip (83) is connected with the back of shell one (1).

2. A saliva plastic for drug testing according to claim 1, wherein, The sampling mechanism (2) includes a square funnel (21), a clamping groove (22), a liquid suction groove (23), a sponge pad (24), test paper (25) and a storage groove (26), the liquid suction groove (23) is opened on the surface of the shell one (1), the square funnel (21) is arranged above the liquid suction groove (23), the bottom end of the square funnel (21) is equally spaced to open the storage groove (26), the outer side of the storage groove (26) is connected with three groups of test paper (25), the test paper (25) is arranged in the shell one (1), the outer side of the shell one (1) is provided with a clamping groove (22), the sponge pad (24) is arranged in the liquid suction groove (23), and the sponge pad (24) is arranged above the three groups of test paper (25).

3. A saliva plastic for drug testing according to claim 2, wherein, The shell one (1) is connected with the bottom end of the square funnel (21) through the storage groove (26) opened on the outer side.

4. The saliva plastic piece for drug detection according to claim 1, wherein, The shell one (1) is connected with the outer side of the groove (82) through the rectangular clamping strip (83) arranged at the bottom end.

5. The saliva plastic piece for drug detection according to claim 1, wherein, The collection mechanism (7) includes a collection base plate (71), a vertical supporting rod (72), a plastic tooth (73), a fingerprint film silica gel (74) and a square tube (75), the bottom end of the collection base plate (71) is connected with the top end of the vertical supporting rod (72), the bottom end of the vertical supporting rod (72) is connected with the inside of the square tube (75), the bottom end of the square tube (75) is connected with the inside of the shell one (1), the outer side of the vertical supporting rod (72) is connected with the plastic tooth (73), the fingerprint film silica gel (74) is arranged above the collection base plate (71), and the fingerprint film silica gel (74) is arranged in parallel with the pressing through hole (10).

6. A saliva plastic for drug testing according to claim 5, wherein, The vertical supporting rod (72) is connected with the top end of the square tube (75) through the plastic tooth (73) arranged on one side.

Citation Information

Patent Citations

  • Saliva collecting and detecting card

    CN214097174U

  • Sampling device

    JP1993187976A